World champions Red Bull defied the instruction on lap five of Sunday's showpiece and Daniel Ricciardo was subsequently disqualified from second place.
Now Mirror Sport has learned that race winner Nico Rosberg had to adjust his fuel flow at the instructions of the race director.
The same had happened on the previous day.
Unlike Red Bull, though, Mercedes complied immediately even though their readings were not the same as the FIA's.
They did not feel it was right to contest the validity of the FIA’s measuring system, which uses highly sensitive ultrasonic technology.
The fuel flow meters at the heart of the controversy are supplied by Gill Sensors, who say they have been told the FIA have full confidence in their equipment.
“Following the Australian Grand Prix last weekend, the FIA have provided Gill Sensors with positive feedback on the performance of the fuel flow meter, confirming their confidence in the development and stating the meters meet the FIA’s accuracy specification," said a Gill Sensor statement.
“The meter development included an extensive testing program, which involved liaising with many of the F1 teams for their valuable feedback on meter design and functionality.
“The meters utilize ultrasonic technology which was selected for its resilience in extreme operating conditions." Mirror Sports